MaxLinear XR16L784CV-F

The XR16L784 (784) integrates the functions of 4 enhanced 16550 UARTs, a general purpose 16-bit timer/counter and an on-chip oscillator. The device configuration registers include a set of four consecutive interrupt source registers that provides interrupt-status for all 4 UARTs, timer/counter and a sleep wake up indicator. Each UART channel has its own 16550 UART compatible configuration register set for individual channel control, status, and data transfer. Additionally, each UART channel has 64-byte of transmit and receive FIFOs, automatic RTS/CTS or DTR/DSR hardware flow control with hysteresis control, automatic Xon/Xoff and special character software flow control, programmable transmit and receive FIFO trigger levels, FIFO level counters, infrared encoder and decoder (IrDA ver 1.0), programmable baud rate generator with a prescaler of divide by 1 or 4, and data rate up to 6.25 Mbps with 8X sampling clock rate or 3.125Mbps in the 16X rate. The XR16L784 is a 5V and 3.3V device with 5 volt tolerant inputs (except XTAL1).

• 2.97V to 5.5V operation with 5V Tolerant Inputs
• 8-bit Intel or Motorola Data Bus Interface
• Single Open Drain Interrupt output for all 4 channels
• Global Interrupt Source Registers for all channels
• 5G (Fifth Generation) “Flat” Register Set
• 16C550 Compatible Registers
• 64-byte Transmit and Receive FIFOs
• Transmit and Receive FIFO Level Counters
• Programmable TX and RX FIFO Trigger Levels
• Automatic RTS/CTS or DTR/DSR Flow Control
• Selectable RTS Flow Control Hysteresis
• Automatic Xon/Xoff Software Flow Control
• Automatic RS485 Half-duplex Control Output with 16 Selectable Turn-around Delay
• Infrared (IrDA 1.1) Data Encoder/Decoder
• Programmable Data Rate with Prescaler
• Up to 3.12 (16x) and 6.25 (8x) Mbps Data Rate

• Remote Access Servers
• Ethernet Network to Serial Ports
• Network Management
• Factory Automation and Process Control
• Point-of-Sale Systems
• Multi-port RS-232/RS-422/RS-485 Cards